One of the problems with Peter Gabriel’s back catalogue for me, I tell him, as he is reclining in an office at EMI in London, is the sounds - some of them really are very dated. Gabriel would often pioneer a sound like the reverse-gated drum sound - others would imitate, it becomes trendy, over-used, and then hugely unfashionable.

It’s almost dark. Frescoes depicting the cycle of life are barely visible. They could be shadows. Waves of sound pulse through the mausoleum of Norwegian artist Emanuel Vigeland. Fiddle player Nils Økland is feeding the 15-second delay with peals that reverberate around the space, folding back into themselves. It’s a spooky, unforgettable introduction to FolkeLarm, Oslo’s annual festival of Nordic folk music.

The great folk guitarist Bert Jansch died early this morning, aged 67. Whether as a prime mover in London's 1960s folk scene, or as part of pioneering folk-jazzers Pentangle, or as a songwriter and solo artist, his influence on everyone from Paul Simon, Donovan, Led Zeppelin and Neil Young to, later, Johnny Marr, Graham Coxon and Beth Orton is simply immeasurable. Young compared Jansch's impact on the possibilities of the acoustic guitar as comparable to that of Jimi Hendrix's on the electric.

In the generation of twentysomething rock musicians bottle-fed on world music, the Bristol band Zun Zun Egui really stand out. They make some of the most exciting music to have emerged in the last 12 months.

Formed in 2000 by thirtysomething sisters Catherine and Allison Pierce, Alabaman duo The Pierces have spent over a decade flitting from style to style and label to label, the nuggets of critical acclaim heavily outweighed by public indifference. Everything finally clicked, however, with their fourth album, You & I, which entered the UK charts at number four earlier this year.

I know nothing about Brazil, I have come to realise. A Sergio Mendes album here, a Gilles Peterson compilation there, a blurred memory of catching City of God on Film4 once – these do not add up to even the beginnings of insight into a country big and diverse enough to be more like a continent in its own right. As one person I meet early on in Brasilia says, asking someone to tell you what's happening in another of Brazil's regions or cultures “could be like asking someone in Athens to tell you about the scene in Helsinki”.

To celebrate theartsdesk's second birthday on Friday, we held a panel discussion on The Art of Performance at Kings Place, London, in the Kings Place Festival.

And so it begins again. Earlier this summer I attended what has become a regular British ritual, exactly like Wimbledon and Henley, the Chelsea Flower Show and Ascot, with only one or two small discrepancies. The forecourt in front of the O2 heaved with ticketed humanity, carefully caged into pens and queueing against the magical moment when the doors would open and officials in fluorescent jackets wielding digital barcode readers would usher them into that citadel of contemporary British culture. I refer, of course, to the X Factor auditions.

Some things just don’t seem to belong in a pairing. The flute and the French horn both have their distinct sonic personality. It wouldn’t be going out on a limb to suggest that the average listener tends to lean towards one or the other. Even Mozart wrote for the horn out of love but trotted out his flute compositions for money. But opposites can and do attract and so it once more proves in a new recording featuring the horn and the flute and, discreetly chaperoning the pair of them, the piano.

News about the death of Colombia's greatest salsa singer, Joe Arroyo, has sent shock waves through the salsa world and fan bases internationally, and it brought in streams of digital messages. On the morning of his death two weeks ago, the President Juan Manuel Santos tweeted, “It’s a great loss for music and Colombia.” Arroyo’s life resembled a soap opera, and the irony is that a series based on his life story, El Joe, le Leyenda, (Joe, the Legend), has been the most popular soap on primetime Colombian television since May. It remains on air in tribute.